Free games like Dementium II
Below are 8 free-to-play Steam games similar to Dementium II, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Dementium II page.
Ranked picks
- 1
Darkenstein 3D
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action and Adventure with Dementium II.
A retro shooter inspired by classics like Wolfenstein and Doom. Think of it as a tribute, a love letter to the games that defined a generation, with a few modern touches of my own. It’s tough, fast, and demands skill, just the way those old-school shooters did.
- 2
Doki Doki Literature Club!
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Indie with Dementium II.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
- 3
Nightmare House: The Original Mod
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action and Indie with Dementium II.
Wake up, it’s time for the real nightmare to begin. Make your way through a terrorizing house, uncover the secrets of a haunted hospital, fight through hordes of the undead, and try to escape Nightmare House.
- 4
Devolverland Expo
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action and Indie with Dementium II.
Devolverland Expo is a first-person 'marketing simulator' set within an abandoned convention center after the annual Devolver Digital game expo was mysteriously canceled.
- 5
Hellbound: Survival Mode
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action and Indie with Dementium II.
FULL GAME NOW AVAILABLE. GO GET IT! This is the Free Survival Mode for Hellbound: a '90s style First Person Shooter, made 30 years later… but just a glimpse of the full game, go check it out!
- 6
Intravenous 2: Mercenarism
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action and Indie with Dementium II.
Playing as Gideon, a cold-hearted mercenary willing to kill for money without any moral principles, you'll have tactical freedom with a wide variety of weapons and special gadgets to complete your mission in the prologue of Intravenous 2.
- 7
死寂（Deathly Stillness）
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action and Indie with Dementium II.
This is a boring zombie game with no plot, not an officially released game, please don't have high expectations.
- 8
STRAFTAT
Free-to-play alternative to Dementium II — no purchase or trial window. Shares Action with Dementium II.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.